/*----------------------------------------------------------------------------*/
/*                                                                            */
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/* Copyright (c) 2005-2014 Rexx Language Association. All rights reserved.    */
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/*                                                                            */
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/******************************************************************************/
/* REXX Kernel                                              SysActivity.hpp   */
/*                                                                            */
/* System support for Thread operations                                       */
/*                                                                            */
/******************************************************************************/

#ifndef Included_SysActivity
#define Included_SysActivity

#include "windows.h"
#include <stdio.h>

class Activity;

class SysActivity
{
public:


    inline SysActivity() : threadId(0), hThread(NULL) { }
    inline bool equals(thread_id_t t) { return threadId == t; }
    void create(Activity *activity, size_t stackSize);
    void close();
    void useCurrentThread();
    bool validateThread();
    inline thread_id_t getThreadID() { return threadId; }

    static thread_id_t queryThreadID();
    static char* getStackBase();
    static size_t getStackSize();

protected:
    thread_id_t   threadId;         // the thread identifier
    HANDLE        hThread;          // handle to thread (needed for some operations)
};

#endif
